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Enabling Sensitive Conversations with Consent Boundaries: Moa, a Platform for Discussing PhD Advising Relationships [as a testcase] | Proceedings of the ACM on Human-Computer Interaction
Too long and seemingly structurally disconnect, so mind started to slip, but from the points I was able to catch, sounds like those anonymous boards of old I hear about. Iirc there has been an implementation of that in the fediverse already, though it's been some months so can't remember the name.